Microwave sensor device, and sensing methods, and lighting system using the sensor device

Active Publication Date: 2021-06-03
SIGNIFY HOLDING B V
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a sensor device that can detect motion and generate a communication signal using the same transceiver. The communication signal can be detected by another sensor device in the same way it detects motion, even if the signals are not intentional. This means that the sensor devices can communicate with each other without interfering with their primary sensing function. The communication signal can be transmitted with a fixed frequency difference or a dynamic pattern of frequency difference. The sensor devices can be positioned close enough to each other that the communication signal can be detected within a certain distance of spreading, providing a finite distance of activity / motion trigger. The invention allows for automatic control of multiple luminaires in response to objects moving through different illumination areas.

Problems solved by technology

This increases the system cost and complexity.

Method used

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  • Microwave sensor device, and sensing methods, and lighting system using the sensor device
  • Microwave sensor device, and sensing methods, and lighting system using the sensor device
  • Microwave sensor device, and sensing methods, and lighting system using the sensor device

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Embodiment Construction

[0080]The invention will be described with reference to the Figures.

[0081]It should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the apparatus, systems and methods, are intended for purposes of illustration only and are not intended to limit the scope of the invention. These and other features, aspects, and advantages of the apparatus, systems and methods of the present invention will become better understood from the following description, appended claims, and accompanying drawings. It should be understood that the Figures are merely schematic and are not drawn to scale. It should also be understood that the same reference numerals are used throughout the Figures to indicate the same or similar parts.

[0082]The invention provides a microwave sensor device for detecting activity and for sending and / or receiving a communications signal to / from a second microwave sensor device. A microwave transceiver is used for transmitt...

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Abstract

A microwave sensor device is for detecting activity and for sending and / or receiving a communications signal to / from a second microwave sensor device. A microwave transceiver is used for transmitting a microwave transmit signal and for receiving a microwave receive signal. For motion detection, the microwave receive signal is a reflected version of the microwave transmit signal and the signals are processed to identify first signal characteristics. For communication, the microwave transmit signal is a communications signal for detection at another sensor device. The transmit and microwave receive signals are processed to identify second characteristics. This sensor device detects motion and also transmits and / or receives a communications signal using the same transceiver. In particular, the communications signal is designed to be detected by a remote sensor device in the same way as for motion detection.

Description

FIELD OF THE INVENTION[0001]This invention relates to microwave sensor devices, for example for presence and movement detection. Such detection may then be used to control other devices, such as luminaires of a lighting system.BACKGROUND OF THE INVENTION[0002]There is a trend in the lighting industry for lighting devices to become interconnected by the internet of things (IoT) so that functions may be implemented based on communication between lighting devices. One of the key elements of a smart lighting system is sensor integration.[0003]Lighting devices are well known with infrared PIR sensors for motion, and hence presence, detection. An alternative which is becoming increasingly popular is the use of a microwave sensor. This type of sensor may be more sensitive and it is also able to function through a lighting device lens, thus enabling more compact integration of the sensor into a lighting device.[0004]There are advantages to sensor integration even for a standalone device. Fo...

Claims

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Application Information

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IPC IPC(8): H05B47/115H05B47/19H05B47/155G01S17/50G01S17/86
CPCH05B47/115H05B47/19G01S17/86G01S17/50H05B47/155G01S13/56G01S13/87G01S13/88Y02B20/40
InventorSHI, LIANGDING, RANG JIANWANG, GANGKHAN, SHOAIBPIJLMAN, FETZE
OwnerSIGNIFY HOLDING B V